Radiation Dose measured at exhaust stack monitor of Fukushima Daiichi Nuclear Power Station

○Information

○Measurement value list ： 2026/08/30(CSV Download)

Stack Unit：cps　Wind Velocity Unit：m/s

※"-": the wind velocity is below 0.5m/s

Time	Unit 5,6 joint stack	Wind Direction	Wind Velocity
00:00	3.6	northwest	1.3
00:10	3.6	northwest	1.7
00:20	3.6	north-northwest	1.6
00:30	3.5	north-northwest	1.6
00:40	3.6	northwest	2.3
00:50	3.5	northwest	2.1
01:00	3.5	north-northwest	2.7
01:10	3.9	north-northwest	1.9
01:20	3.5	north-northwest	2.8
01:30	3.7	north-northwest	2.8
01:40	3.6	north-northwest	3.0
01:50	3.6	north-northwest	3.0
02:00	3.6	north-northwest	3.6
02:10	3.5	north-northwest	3.8
02:20	3.6	north-northwest	3.7
02:30	3.6	north-northwest	3.0
02:40	3.7	north-northwest	2.7
02:50	3.6	north-northwest	2.7
03:00	3.6	north-northwest	2.4
03:10	3.5	northwest	2.1
03:20	3.7	north-northwest	1.9
03:30	3.6	northwest	1.4
03:40	3.5	north	0.7
03:50	3.6	north	1.3
04:00	3.5	north-northwest	1.3
04:10	3.5	north	1.2
04:20	3.6	north	1.4
04:30	3.5	north	0.7
04:40	3.5	-	CALM
04:50	3.6	southeast	0.6
05:00	3.7	-	CALM
05:10	3.6	-	CALM
05:20	3.6	-	CALM
05:30	3.6	north-northwest	0.7
05:40	3.5	north-northwest	1.1
05:50	3.7	north-northwest	1.0
06:00	3.6	north-northwest	1.0
06:10	3.6	west	0.8
06:20	3.5	west-southwest	0.8
06:30	3.5	west-northwest	0.9
06:40	3.4	northwest	0.6
06:50	3.6	-	CALM
07:00	3.6	-	CALM
07:10	3.8	-	CALM
07:20	3.6	-	CALM
07:30	3.5	-	CALM
07:40	3.5	north-northeast	1.0
07:50	3.6	north-northwest	0.8
08:00	3.5	west-northwest	0.6
08:10	3.6	west-northwest	1.0
08:20	3.5	west-northwest	1.1
08:30	3.6	west	0.8
08:40	3.5	west-southwest	0.8
08:50	3.5	west	1.5
09:00	3.6	west-northwest	1.1
09:10	3.5	northwest	1.3
09:20	3.6	northwest	1.6
09:30	3.6	northwest	1.4
09:40	3.8	northwest	1.5
09:50	3.5	northwest	1.9
10:00	3.7	northwest	1.3
10:10	3.5	west-northwest	0.9
10:20	3.4	west-northwest	1.1
10:30	3.4	-	CALM
10:40	3.6	-	CALM
10:50	3.4	northwest	0.7
11:00	3.6	north	0.9
11:10	3.6	north	0.7
11:20	3.5	north	1.4
11:30	3.7	north	1.8
11:40	3.6	north-northwest	0.7
11:50	3.6	north-northeast	2.2
12:00	3.6	north-northeast	1.5
12:10	3.6	north	2.0
12:20	3.7	north	2.0
12:30	3.5	north-northeast	2.0
12:40	3.6	north-northeast	1.4
12:50	3.5	north-northeast	2.1
13:00	3.6	northeast	2.4
13:10	3.5	north-northeast	2.9
13:20	3.5	north-northeast	2.7
13:30	3.6	north-northeast	1.9
13:40	3.6	north-northeast	2.3
13:50	3.7	north-northeast	2.5
14:00	3.7	north-northeast	2.0
14:10	3.4	north-northeast	1.9
14:20	3.5	north-northeast	2.6
14:30	3.4	north-northeast	2.2
14:40	3.6	north-northeast	2.6
14:50	3.4	north-northeast	2.7
15:00	3.6	north-northeast	2.5
15:10	3.6	north-northeast	2.2
15:20	3.6	north	2.3
15:30	3.6	north	2.5
15:40	3.6	north	2.9
15:50	3.6	north	2.9
16:00	3.5	north	2.3
16:10	3.7	north	3.3
16:20	3.6	north	2.3
16:30	3.5	north	2.1
16:40	3.6	north	2.3
16:50	3.5	north-northwest	2.4
17:00	3.5	north-northwest	2.5
17:10	3.5	north-northwest	2.7
17:20	3.6	north-northwest	2.7
17:30	3.6	north	3.7
17:40	3.6	north	2.5
17:50	3.5	north	3.9
18:00	3.5	north-northwest	3.0
18:10	3.6	north-northwest	3.0
18:20	3.4	northwest	2.7
18:30	3.5	northwest	3.1
18:40	3.7	north-northwest	3.2
18:50	3.6	north-northwest	4.4
19:00	3.4	north-northwest	4.9
19:10	3.5	north-northwest	4.9
19:20	3.6	north-northwest	5.0
19:30	3.5	northwest	4.6
19:40	3.6	northwest	3.7
19:50	3.5	northwest	3.2
20:00	3.5	northwest	2.0
20:10	3.7	west	1.4
20:20	3.5	west	1.8
20:30	3.5	west-northwest	1.6
20:40	3.5	west-northwest	2.8
20:50	3.5	northwest	3.9
21:00	3.6	west-northwest	4.7
21:10	3.6	northwest	5.6
21:20	3.6	northwest	5.6
21:30	3.6	northwest	6.3
21:40	3.7	northwest	6.3
21:50	3.6	northwest	6.2
22:00	3.6	northwest	6.8
22:10	3.5	north-northwest	7.1
22:20	3.3	north-northwest	5.7
22:30	3.6	north-northwest	6.7
22:40	3.5	north-northwest	7.4
22:50	3.7	northwest	6.4
23:00	3.5	northwest	7.2
23:10	3.6	northwest	6.7
23:20	3.5	north-northwest	6.9
23:30	3.6	northwest	6.6
23:40	3.6	northwest	5.9
23:50	3.7	north-northwest	6.3